Clamping device special for valve production

Abstract

The invention relates to the technical field of workpiece punching clamping, in particular to a clamping device special for valve production. The technical problems that according to an existing clamping mode, the steps are tedious, the clamping efficiency is affected, a manually-placed three-fork valve is likely to deviate, it is difficult to effectively and rapidly position and clamp the three-fork valve through the existing clamping mode, follow-up punching is not accurate and stable enough, a clamping piece is inconvenient to lock in the clamping process, and the clamping efficiency is affected are solved. Therefore, the three-way valve may be disengaged in the external force factor, and the clamping effect is poor. A clamping device special for valve production comprises a supporting base; the motor is mounted on one side of the supporting seat; and the U-shaped frame is fixedly connected to one end of the output shaft of the motor and is rotationally connected with the supporting seat. A worker only needs to place and push the three-way valve downwards, the three-way valve can be synchronously clamped in three directions through the air pump, the worker can operate the three-way valve more conveniently and rapidly, and the clamping efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece punching and clamping, and in particular to a special clamping device for valve production. Background Art

[0002] During the production process of valves, it is necessary to punch holes in each flange of the valve. Before punching, the valve needs to be clamped. Different designs can be used according to the type, size and production process requirements of different valves. Common clamping methods are also divided into: mechanical clamping, hydraulic clamping, custom clamps and pneumatic clamping. During the clamping process of the three-pronged valve, the staff needs to clamp the two sides first and then clamp the top to achieve the purpose of effective clamping.

[0003] Due to the special shape of the three-pronged valve, the clamping steps are relatively complicated and the clamping is not fast enough, which affects the clamping efficiency. In addition, the three-pronged valve manually placed by the staff is prone to deviation. The existing clamping device is difficult to effectively and quickly position and clamp the three-pronged valve, resulting in the subsequent punching being not accurate and stable enough. Furthermore, the current clamping device is not convenient for locking the clamping piece during the clamping process, which may cause the three-pronged valve to detach due to external force factors, resulting in poor clamping effect. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides a special clamping device for valve production, which can synchronously clamp the three-pronged valve in multiple positions at the moment of placing the three-pronged valve, thereby fully improving the clamping efficiency, and can effectively and quickly position and clamp the three-pronged valve to make subsequent punching more precise and stable, and can also lock the clamping piece during the clamping process to prevent the three-pronged valve from falling off due to external force factors, thereby enhancing the clamping effect.

[0005] The technical implementation scheme of the present invention is: a special clamping device for valve production, comprising: Support seat; The motor is installed on one side of the support base; A U-shaped frame with a cavity is fixed to one end of the motor output shaft and is rotatably connected to the support seat; Two air pumps, a connecting pipe and a fixing frame are installed at the bottom of the U-shaped frame, the air inlets of the two air pumps are respectively connected to the outside of the U-shaped frame, and the two sides of the connecting pipe are respectively connected to the air outlets of the two air pumps; Two limit tubes fixedly connected to the U-shaped frame; A triggering member is arranged on the U-shaped frame; Three-pronged valve, placed on the trigger; Clamping mechanisms on both sides are arranged on the trigger member and the limit rod; The top clamping mechanism is arranged on the clamping mechanisms on both sides and the U-shaped frame.

[0006] Optionally, the trigger member includes: a fixing tube fixed between the U-shaped frame and the fixing frame, the top of the fixing tube is connected to the outside of the U-shaped frame, and vents are provided on both sides; a trigger tube slidably connected to the fixing tube, and trigger holes are provided on both sides of the trigger tube; a tension spring is connected between the bottom of the trigger tube and the fixing frame.

[0007] Optionally, the two trigger holes of the trigger tube correspond to the two ventilation holes of the fixed tube respectively, and the initial positions are not on the same horizontal line.

[0008] Optionally, the clamping mechanism on both sides includes: a three-pronged tube symmetrically connected to the two air holes on the fixed tube, with a total of two three-pronged tubes; piston cylinders symmetrically connected to the two sides of the two three-pronged tubes, with a total of four piston cylinders; piston rods slidingly connected to the four piston cylinders; compression springs are connected between the four piston rods and the four piston cylinders respectively; an extrusion frame is connected between one end of the two piston rods located on the same side of the two three-pronged tubes; two rotating clamping frames are rotatably connected to the two limiting tubes, and cavities are opened inside and connected to the limiting tubes; rotating slide rails are respectively fixed to the bottom of the four clamping frames, and the two ends of the two extrusion frames are slidingly connected to the four rotating slide rails.

[0009] Optionally, the top clamping mechanism includes: two moving rods that are respectively slidably connected to both sides of the U-shaped frame; two moving clamping frames that are respectively slidably connected to the two moving rods; four moving slide rails that are respectively fixed to the bottom of both sides of the two moving rods; and four pull rods that are respectively fixed to the four rotating clamping frames, and one end of the four pull rods is respectively slidably connected to the four moving slide rails.

[0010] Optionally, a positioning and clamping mechanism is also included, which is used to locate and clamp the lateral position of the three-pronged valve, and is arranged on the three-pronged tube, the limiting tube, the movable clamping frame and the rotating clamping frame, and the positioning and clamping mechanism includes: shunt tubes respectively connected to the sides of the two three-pronged tubes away from each other, and the two shunt tubes are respectively connected to the bottom of the two limiting tubes; positioning tubes respectively connected to the shunt tubes in a sliding manner, and the tops of the two positioning tubes are provided with positioning holes, and the positioning holes of the two positioning tubes respectively correspond to the intersections of the two shunt tubes themselves; two limiting rods respectively fixed to the ends of the two positioning tubes away from each other, and a total of two; sliding frames respectively fixed to the bottom of the two movable clamping frames, and the two sides of the bottom of the two sliding frames are respectively slidably connected to the two sides of the two limiting rods; and clamping members arranged on the inner sides of the four rotating clamping frames.

[0011] Optionally, the clamping member includes: a plurality of clamping sleeves slidably connected to the inner sides of the four rotating clamping frames; and balls respectively embedded in the plurality of clamping sleeves, with the ball portions exposed from the clamping sleeves.

[0012] Optionally, the inner wall of the clamping sleeve is provided with a rubber surface.

[0013] Optionally, the ball is made of rubber.

[0014] Optionally, a locking mechanism is also included, which is used to lock the mobile clamping frame after clamping the three-pronged valve, and is arranged on the mobile clamping frame. The locking mechanism includes: limit blocks respectively fixed to both sides of one of the mobile clamping frames; locking rods respectively rotatably connected to the two limit blocks; torsion springs are respectively connected between the two locking rods and the two limit blocks; locking buckles are respectively fixed to both sides of the other mobile clamping frame; there are two limit blocks, locking rods, torsion springs and locking buckles.

[0015] The beneficial effects of the present invention are: 1. The present invention pumps air into the connecting tube and the trigger tube through an air pump; when the flange of the three-pronged valve needs to be punched, the three-pronged valve pushes the trigger tube downward to make the trigger hole connected to the vent hole, and the air pump instantly pumps gas into the piston cylinder to push the piston rod to move the extrusion frame, and then the rotating clamping frame is rotated by the rotating slide rail to clamp the two sides of the three-pronged valve; while the rotating clamping frame rotates, the moving rod and the moving clamping frame are moved by the pull rod and the moving slide rail, and the two moving clamping frames form a closed loop to clamp the top of the three-pronged valve; in this way, the staff only needs to place and push the three-pronged valve downward, and the air pump can synchronously maintain the clamping state of the three directions of the three-pronged valve, making the staff's operation more convenient and quick, and improving the clamping efficiency.

[0016] 2. When the lateral position of the three-pronged valve is not accurate enough, the mobile clamping frame will be offset to cause the positioning tube to move, and the intersection of the positioning hole and the diverter tube will be staggered and no longer connected, and the air will not be pumped into the limit tube. The staff can move the three-pronged valve back and forth laterally at will and slowly to move the positioning tube. When the positioning hole and the intersection of the diverter tube are connected, the gas will be quickly pumped into the cavity of the rotating clamping frame to squeeze the clamping sleeve to move, and then squeeze the ball. Under the action of the rubber material of the ball and the rubber surface of the clamping sleeve, the ball will no longer rotate, and then the three-pronged valve will be clamped, so that the three-pronged valve can be punched stably laterally, thereby enhancing the clamping effect. At this time, it will be difficult for the staff to move the three-pronged valve laterally in a fixed position. In this way, after clamping, the staff only needs to move the three-pronged valve back and forth slowly laterally to automatically position and clamp the three-pronged valve, thereby further improving the clamping efficiency.

[0017] 3. During the clamping process, the movement of the two mobile clamping frames will drive the limit block, the locking rod and the lock buckle to move respectively. The lock buckle will first squeeze the locking rod to rotate, and the torsion spring will be twisted. After the clamping is completed, the lock buckle will no longer squeeze the locking rod, and the torsion spring will reset to drive the locking rod to reset. The locking rod will hook one side of the lock buckle, and then lock the clamping mechanisms on both sides and the top clamping mechanism, making the clamping more stable, thereby further enhancing the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of the clamping state of the present invention.

[0020] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0021] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0022] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the U-shaped frame and the trigger member of the present invention.

[0023] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the air pump and the connecting pipe of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the trigger member and the clamping mechanisms on both sides of the present invention.

[0025] Figure 8 It is a partial cross-sectional three-dimensional structural schematic diagram of the limiting tube and the rotating clamping frame of the present invention.

[0026] Fig. 9 It is a partially cutaway three-dimensional structural schematic diagram of the clamping mechanisms and the fixing tubes on both sides of the present invention.

[0027] Fig.10 It is a schematic diagram of the split three-dimensional structure of the trigger member and the clamping mechanisms on both sides of the present invention.

[0028] Fig.11 It is a three-dimensional structural schematic diagram of the top clamping mechanism and the rotating clamping frame of the present invention.

[0029] Fig.12 It is a three-dimensional structural schematic diagram of the positioning and clamping mechanism of the present invention.

[0030] Fig.13 It is a partially cutaway three-dimensional structural schematic diagram of the positioning and clamping mechanism of the present invention.

[0031] Fig.14 It is a partially cutaway three-dimensional structural schematic diagram of the rotating clamping frame and the clamping member of the present invention.

[0032] Fig.15 It is a schematic diagram of the partially disassembled three-dimensional structure of the clamping sleeve and the ball of the present invention.

[0033] Fig.16 For the present invention Figure 2 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0034] Fig.17It is a schematic diagram of a partially disassembled three-dimensional structure of the locking mechanism of the present invention.

[0035] The markings of the components in the accompanying drawings are as follows: 101: support seat, 102: motor, 103: U-shaped frame, 21: air pump, 22: connecting pipe, 23: fixing frame, 24: limiting pipe, 3: trigger member, 31: fixing pipe, 311: vent hole, 32: trigger pipe, 321: trigger hole, 33: tension spring, 0: three-pronged valve, 41: three-pronged pipe, 42: piston cylinder, 43: piston rod, 44: compression spring, 45: extrusion frame, 46: rotating clamping frame, 47: rotating slide rail, 51: moving rod, 52: moving clamping frame, 53: moving slide rail, 54: pull rod, 61: shunt pipe, 62: positioning pipe, 621: positioning hole, 63: limiting rod, 64: sliding frame, 65: clamping piece, 651: clamping sleeve, 652: ball, 71: limiting block, 72: locking rod, 73: torsion spring, 74: locking buckle. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1: A clamping device for valve production, such as Figure 1-Figure 14 As shown, including: Support base 101; The motor 102 is installed on one side of the support base 101; The U-shaped frame 103 with a cavity is connected to one end of the output shaft of the motor 102 through a coupling and is rotatably connected to the support base 101; Two air pumps 21, a connecting pipe 22 and a fixing frame 23 are installed at the bottom of the U-shaped frame 103. The two air pumps 21 are respectively located on both sides of the connecting pipe 22. The air inlets of the two air pumps 21 are respectively connected to the outside of the U-shaped frame 103, and the two sides of the connecting pipe 22 are respectively connected to the air outlets of the two air pumps 21. Two limiting tubes 24 welded to the U-shaped frame 103; The trigger member 3 is arranged on the U-shaped frame 103; The three-pronged valve 0 is placed on the trigger 3; The two-side clamping mechanism is used to clamp the two sides of the three-pronged valve 0, and is arranged on the trigger member 3 and the limit rod 63; The top clamping mechanism is used to clamp the top of the three-pronged valve 0 and is arranged on the clamping mechanisms on both sides and the U-shaped frame 103.

[0038] The trigger member 3 includes: a fixed tube 31 welded between the U-shaped frame 103 and the fixed frame 23, the top of the fixed tube 31 is connected to the outside of the U-shaped frame 103, and vent holes 311 are opened on both sides; a trigger tube 32 slidably connected to the fixed tube 31, the two sides of the trigger tube 32 are opened with trigger holes 321, and the top is used to place the three-pronged valve 0; a tension spring 33 is connected between the bottom of the trigger tube 32 and the fixed frame 23.

[0039] The two trigger holes 321 of the trigger tube 32 correspond to the two ventilation holes 311 of the fixed tube 31 respectively, and the initial positions are not on the same horizontal line. The two trigger holes 321 are used to allow the gas pumped into the air pump 21 to pass out of the fixed tube 31 through the two ventilation holes 311 respectively when triggered.

[0040] The clamping mechanism on both sides includes: three-pronged tubes 41 symmetrically connected to the two vent holes 311 of the fixed tube 31, and there are two three-pronged tubes 41; piston cylinders 42 symmetrically connected to the two sides of the two three-pronged tubes 41, and there are four piston cylinders 42, and the two piston cylinders 42 on the same three-pronged tube 41 form a group; piston rods 43 respectively slidably connected to the four piston cylinders 42, and the two piston rods 43 on the same group of piston cylinders 42 are symmetrically arranged, and the piston rods 43 on the two groups of piston cylinders 42 are symmetrically arranged; the four piston rods 43 are respectively connected to the four piston cylinders 42 with compression springs 44; one end of the two piston rods 43 located on the same side of the two three-pronged tubes 41 There are extrusion frames 45 connected between them, and the two extrusion frames 45 are symmetrically arranged; two rotating clamping frames 46 are rotatably connected to the two limiting tubes 24, and cavities are opened inside and communicated with the limiting tubes 24. The two rotating clamping frames 46 on the same limiting tube 24 are a group, and the two groups of rotating clamping frames 46 are symmetrically arranged and located on both sides of the three-pronged valve 0. The two rotating clamping frames 46 in the same group are symmetrically arranged and used to clamp the two sides of the three-pronged valve 0; rotating slide rails 47 are respectively welded to the bottom of the four clamping frames, and the two ends of the two extrusion frames 45 are respectively slidably connected to the four rotating slide rails 47, and the extrusion frames 45 are used to extrude the rotating slide rails 47 to rotate the rotating clamping frames 46.

[0041] The top clamping mechanism includes: two moving rods 51 respectively connected in a sliding manner to the two sides of the U-shaped frame 103; two moving clamping frames 52 respectively connected in a sliding manner to the two moving rods 51, respectively located on both sides of the top of the three-pronged valve 0, for clamping the top of the three-pronged valve 0; four moving slide rails 53 respectively welded to the bottom of both sides of the two moving rods 51; four pull rods 54 respectively welded to the four rotating clamping frames 46, one end of the four pull rods 54 is respectively connected in a sliding manner to the four moving slide rails 53, and the pull rods 54 are used to squeeze the moving slide rails 53 to move the moving clamping frames 52.

[0042] First, the staff starts the air pump 21, and the air pump 21 will pump the air outside the U-shaped frame 103 into the connecting pipe 22 and the trigger tube 32; when it is necessary to punch a hole in the flange of the three-pronged valve 0, the staff first places the three-pronged valve 0 on the top of the trigger tube 32, so that the three-pronged valve 0 is located in the recessed part of the U-shaped frame 103, and then the staff presses the three-pronged valve 0 downward to push the trigger tube 32 downward, and the tension spring 33 is stretched; the trigger tube 32 moves downward so that the trigger hole 321 moves downward to the same horizontal line as the vent hole 311, and then the trigger hole 321 is aligned with the vent hole 311. The vent hole 311 is connected, and at this time, the air pump 21 will instantly pump the gas into the three-pronged tube 41 and the piston cylinder 42 through the trigger hole 321 and the vent hole 311, and the gas will push the piston rod 43 to move, and the compression spring 44 will be compressed. The movement of the piston rod 43 will drive the two extrusion frames 45 to move away from each other, and the movement of the extrusion frame 45 will squeeze the rotating slide rail 47 to make the rotating clamping frame 46 rotate in the direction close to the two sides of the three-pronged valve 0, and the four rotating clamping frames 46 will respectively clamp the two sides of the three-pronged valve 0 in groups of two, thereby clamping the two sides of the three-pronged valve 0; The rotation of the rotating clamping frame 46 will drive the pull rod 54 to rotate. The rotation of the pull rod 54 will pull the two moving rods 51 to move towards each other through the moving slide rail 53. The movement of the moving rod 51 will drive the moving clamping frame 52 to move towards the top of the three-pronged valve 0 and contact it. The two moving clamping frames 52 will form a closed loop to clamp the top of the three-pronged valve 0, thereby clamping the top of the three-pronged valve 0; when it is necessary to punch other flanges of the three-pronged valve 0, the staff can drive the U-shaped frame 103 to rotate by controlling the motor 102, thereby adjusting the angle of the flange of the three-pronged valve 0 for easy operation; In this way, the staff only needs to place and push the three-pronged valve 0 downwards, and the three directions of the three-pronged valve 0 can be simultaneously maintained in a clamping state by the air pump 21, making the staff's operation more convenient and faster, and improving the clamping efficiency; When the punching is completed, the staff turns off the air pump 21 and releases the air. The gas no longer pushes the piston rod 43, and the compression spring 44 resets to drive the piston rod 43 and the extrusion frame 45 to reset. The extrusion frame 45 is reset by rotating the slide rail 47, so that the rotating clamping frame 46 is reset and no longer clamps the two sides of the three-pronged valve 0. At the same time, the rotating clamping frame 46 is reset by the pull rod 54 and the movable slide rail 53, so that the movable rod 51 and the movable clamping frame 52 are reset. The movable clamping frame 52 is reset and no longer clamps the top of the three-pronged valve 0. The three-pronged valve 0 no longer squeezes the trigger tube 32. The tension spring 33 is reset to drive the trigger tube 32 to reset, and then the three-pronged valve 0 is ejected. The staff can remove the three-pronged valve 0 after punching.

[0043] Embodiment 2: Based on embodiment 1, Figure 3-Figure 15As shown, it also includes a positioning clamping mechanism for locating and clamping the lateral position of the three-pronged valve 0, which is arranged on the three-pronged pipe 41, the limiting pipe 24, the movable clamping frame 52 and the rotating clamping frame 46, and the positioning clamping mechanism includes: a shunt pipe 61 respectively connected to the two three-pronged pipes 41 on the side away from each other, and the two shunt pipes 61 are respectively connected to the bottom of the two limiting pipes 24; a positioning pipe 62 respectively connected to the shunt pipe 61 in a sliding manner, for locating the lateral position of the three-pronged valve 0, and the tops of the two positioning pipes 62 are both provided with positioning holes 621, and the two positioning pipes The positioning holes 621 of 62 correspond to the intersections of the two shunt pipes 61 respectively, and the positioning holes 621 are used to block the air circulation in the shunt pipe 61 before positioning, and no longer block the shunt pipe 61 after positioning; there are two limit rods 63 welded to the two ends of the two positioning pipes 62 that are away from each other; sliding frames 64 are welded to the bottom of the two movable clamping frames 52 respectively, and the two sides of the bottom of the two sliding frames 64 are respectively slidably connected to the two sides of the two limit rods 63; the clamping parts 65 arranged on the inner sides of the four rotating clamping frames 46 are used to clamp the three-pronged valve 0 after positioning.

[0044] The clamping member 65 includes: a plurality of clamping sleeves 651 slidably connected to the inner side of four rotating clamping frames 46; and balls 652 respectively embedded in the plurality of clamping sleeves 651, and the balls 652 are partially exposed from the clamping sleeves 651, and the balls 652 are used to prevent the three-pronged valve 0 from being scratched during positioning and movement.

[0045] The inner wall of the clamping sleeve 651 is provided with a rubber surface to prevent the ball 652 from slipping during clamping.

[0046] The ball 652 is made of rubber and is used to prevent slipping between the ball 652 and the three-pronged valve 0 when clamping, and to avoid damaging the surface of the three-pronged valve 0 when clamping.

[0047] In the process of clamping the three-pronged valve 0, the rotating clamping frame 46 rotates to drive the clamping piece 65 to rotate and contact the two sides of the three-pronged valve 0. The movement of the mobile clamping frame 52 will drive the sliding frame 64 to slide on the limiting rod 63. Part of the air pumped into the three-pronged pipe 41 by the air pump 21 will enter the shunt pipe 61, and then be pumped into the cavity of the rotating clamping frame 46 through the positioning tube 62, the positioning hole 621 and the limiting tube 24. The air in the cavity of the rotating clamping frame 46 will squeeze a plurality of clamping sleeves 651 to move toward the surface of the three-pronged valve 0, and then squeeze the ball 652. Under the action of the rubber material of the ball 652 and the rubber surface of the clamping sleeve 651, the ball 652 no longer rotates, and then the three-pronged valve 0 is clamped, so that the three-pronged valve 0 can be punched stably later, thereby enhancing the clamping effect. When the lateral position of the three-pronged valve 0 placed by the staff is not accurate enough, the mobile clamping frame 52 will move laterally and produce deviation during the process of clamping the three-pronged valve 0. The lateral movement of the mobile clamping frame 52 will drive the limit rod 63 to move laterally through the sliding frame 64. The movement of the limit rod 63 will drive the positioning tube 62 to move, so that the intersection of the positioning hole 621 and the shunt pipe 61 is staggered and no longer connected, so that the air in the shunt pipe 61 will not be pumped into the limit pipe 24. At this time, the ball 652 can rotate freely in the clamping sleeve 651, and the staff can arbitrarily and slowly move the three-pronged valve 0 back and forth laterally for a short distance. distance, the three-pronged valve 0 moves horizontally through the mobile clamping frame 52, the sliding frame 64 and the limit rod 63 to drive the positioning tube 62 to move horizontally. When the positioning hole 621 is connected with the intersection of the shunt tube 61, the gas will be quickly pumped into the cavity of the rotating clamping frame 46 through the positioning hole 621, the intersection of the shunt tube 61 and the limit tube 24, and then quickly clamp the two sides of the three-pronged valve 0. At this time, it will be difficult for the staff to move the three-pronged valve 0 horizontally in a fixed position. In this way, after clamping, the staff only needs to slowly move the three-pronged valve 0 back and forth horizontally to automatically position and clamp the three-pronged valve 0, thereby further improving the clamping efficiency.

[0048] Embodiment 3: Based on embodiment 2, Figure 1-Figure 17 As shown, a locking mechanism is also included for locking the mobile clamping frame 52 after clamping the three-pronged valve 0, and is arranged on the mobile clamping frame 52. The locking mechanism includes: limit blocks 71 respectively welded to both sides of one of the mobile clamping frames 52; locking rods 72 respectively rotatably connected to the two limit blocks 71; torsion springs 73 are respectively connected between the two locking rods 72 and the two limit blocks 71; lock buckles 74 are respectively welded to both sides of the other mobile clamping frame 52; there are two limit blocks 71, locking rods 72, torsion springs 73 and lock buckles 74.

[0049] When the locking cam 72 is in the unlocking state, the locking cam 74 will be in the unlocking state, and the locking cam 74 will be in the unlocking state, so that the locking cam 74 can be locked to the unlocking state.

[0050] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A clamping device for valve production, characterized by: include: Support seat (101); A motor (102) is mounted on one side of the support base (101); A U-shaped frame (103) with a cavity is fixedly connected to one end of the output shaft of the motor (102) and is rotatably connected to the support seat (101); Two air pumps (21), a connecting pipe (22) and a fixing frame (23) are installed at the bottom of the U-shaped frame (103), the air inlets of the two air pumps (21) are respectively connected to the outside of the U-shaped frame (103), and the two sides of the connecting pipe (22) are respectively connected to the air outlets of the two air pumps (21); Two limiting tubes (24) fixedly connected to the U-shaped frame (103); A trigger member (3) is arranged on the U-shaped frame (103); A three-pronged valve (0) is placed on the trigger (3); The clamping mechanisms on both sides are arranged on the trigger member (3) and the limit rod (63); The top clamping mechanism is arranged on the clamping mechanisms on both sides and the U-shaped frame (103).

2. A valve production-specific clamping device according to claim 1, characterized in that: The trigger member (3) comprises: a fixing tube (31) fixedly connected between the U-shaped frame (103) and the fixing frame (23), the top of the fixing tube (31) being in communication with the outside of the U-shaped frame (103), and having vent holes (311) on both sides; a trigger tube (32) slidably connected to the fixing tube (31), and having trigger holes (321) on both sides of the trigger tube (32); and a tension spring (33) connected between the bottom of the trigger tube (32) and the fixing frame (23).

3. A valve production-specific clamping device according to claim 2, characterized in that: The two trigger holes (321) of the trigger tube (32) correspond to the two ventilation holes (311) of the fixed tube (31) respectively, and their initial positions are not on the same horizontal line.

4. A valve production-specific clamping device according to claim 2, characterized in that: The two-side clamping mechanism comprises: a three-pronged tube (41) symmetrically connected to two vent holes (311) of a fixed tube (31), wherein there are two three-pronged tubes (41); piston cylinders (42) symmetrically connected to the two sides of the two three-pronged tubes (41), wherein there are four piston cylinders (42); piston rods (43) respectively connected in a sliding manner in the four piston cylinders (42); compression springs (44) are respectively connected between the four piston rods (43) and the four piston cylinders (42); an extrusion frame (45) is connected between one end of the two piston rods (43) located on the same side of the two three-pronged tubes (41); two rotating clamping frames (46) are rotatably connected to the two limiting tubes (24), and the cavities are opened inside and are connected to the limiting tubes (24); and rotating slide rails (47) are respectively fixed to the bottoms of the four clamping frames, and the two ends of the two extrusion frames (45) are respectively connected in a sliding manner to the four rotating slide rails (47).

5. A valve production-specific clamping device according to claim 4, characterized in that: The top clamping mechanism comprises: two moving rods (51) respectively connected to the two sides of the U-shaped frame (103) in a sliding manner; two moving clamping frames (52) respectively connected to the two moving rods (51) in a sliding manner; four moving slide rails (53) respectively fixed to the bottom of the two sides of the two moving rods (51); and four pull rods (54) respectively fixed to the four rotating clamping frames (46), one end of the four pull rods (54) being respectively connected to the four moving slide rails (53) in a sliding manner.

6. A valve production-specific clamping device according to claim 5, characterized in that: It also includes a positioning clamping mechanism for positioning the lateral position of the three-pronged valve (0) and clamping it, and is arranged on the three-pronged pipe (41), the limiting pipe (24), the movable clamping frame (52) and the rotating clamping frame (46), the positioning clamping mechanism comprising: a flow dividing pipe (61) respectively connected to the mutually distant sides of the two three-pronged pipes (41), the two flow dividing pipes (61) respectively connected to the bottom of the two limiting pipes (24); a positioning pipe (62) respectively connected to the flow dividing pipe (61) in a sliding manner, and the two positioning pipes (62) The tops of the two positioning tubes (62) are each provided with a positioning hole (621), the positioning holes (621) of the two positioning tubes (62) respectively corresponding to the intersections of the two flow diversion tubes (61); two limiting rods (63) respectively fixed to the ends of the two positioning tubes (62) that are away from each other; sliding frames (64) respectively fixed to the bottoms of the two movable clamping frames (52), the bottom sides of the two sliding frames (64) respectively connected to the two sides of the two limiting rods (63) in a sliding manner; and clamping members (65) arranged on the inner sides of the four rotating clamping frames (46).

7. A valve production-specific clamping device according to claim 6, characterized in that: The clamping member (65) comprises: a plurality of clamping sleeves (651) slidably connected to the inner sides of four rotating clamping frames (46); and balls (652) respectively embedded in the plurality of clamping sleeves (651), with the balls (652) partially exposed from the clamping sleeves (651).

8. A valve production-specific clamping device according to claim 7, characterized in that: The inner wall of the clamping sleeve (651) is provided with a rubber surface.

9. A valve production-specific clamping device according to claim 7, characterized in that: The ball (652) is made of rubber.

10. A clamping device for valve production according to claim 7, characterized in that: The invention also includes a locking mechanism for locking the movable clamping frame (52) after clamping the three-pronged valve (0), and is arranged on the movable clamping frame (52), wherein the locking mechanism includes: limit blocks (71) respectively fixed to two sides of one of the movable clamping frames (52); locking rods (72) respectively rotatably connected to the two limit blocks (71); torsion springs (73) are respectively connected between the two locking rods (72) and the two limit blocks (71); and locking buckles (74) respectively fixed to two sides of the other movable clamping frame (52); and there are two limit blocks (71), two locking rods (72), two torsion springs (73) and two locking buckles (74).

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